Oil-burning system.



UPATENTED NOV. 26. 190?.

I. E. SMITH. OIL BURNING SYSTEM.

APPLIOATION FILED JULY 30. mos.

Hwmnba 'J gmum WALL IRA EDWARD SMITH, OF STOCKTON, CALIFORNIA.

' OIL-BURNING SYSTEM.

Specification of Letters Patent.

fsaented Nov. 26, 1907.

Application filed July 30 1906. Serial No. 328.307.

[the details of the construction'of the im- To all whom it may concern:

-Be it known that I, IRA EDWARD Snrrn, a citizen of the United States, and a resident of Stockton, in the county of San Joaquin and State of California, have invented certain new and useful Improvements in Oil- Burning Systems; and 1 do declare the following to be a full, clear, and exact description of the same. such as will enable others skilled in the art to which it appertains to makennd use the same, reference being bad to the accompanying drawings, and the characters of reference marked thereon, which form a part of this specification.

My invention relates to improvements in oil burning systems, such are used in connection with cooking stores, furnaces, and hunting contrivances, end particularly to th se used in restaurants, hotels and similar loruiitii-s, and I produce a perfect and steady combustion Without cruising smoke, soot, smell or an unsteady llama.

The object of my invention is to reduce an oil burning system in which oil our air are automatically commiugli-d and fed in the proper proportions for utomizing the oil at the burner, iind permitting a low or a high flame, as described and without causing smoke or unstoudiness of the iiume.

The particular features of my imprm'cd system are the means whereby l produce a perfect air supply, niid also the control I am enabled to exercise over the whole system. 1 am aware thzatuttempts have been made to ntomize oil with air, but so'l'u-r as 1 am aware, such attempts have gem-rally been accompanied by certain olrjvctiuns which I aim to overmumin my improved il hurnim, system, as will appear by u perusal of the following spi-ciIii-ution and claims.

In the drawings similar characters of rvl'orcm-iindicate corresponding ports in tho sovi-ral vi ws. I

Figure l is :i topplnn view of my improved apparatus. Fig. 2 is :t sectional vii-w enlarged of tho oil tank and its fittings employed in conne tion with the improved :i.ppumtus. Fig. 5'; is :1. southml VllW of a mixing; nipple mnplo vud in thizrpparntus. l 'ig. i is n s ctional view of llm automatic shut-- oll' vulvo. Fig. 3') is a sectional view of thihum r pip employed in tho improved appumtns. Fig. l, is :1. Hi-(Linlml View of tho .-.l.r.=im-r i-mployu-d in the lll)P"lYldiilPPii-l'll- Lllfs.

For the purpose ol' morc clcurly s mcil'ying groveda p .ratus, I will in this specification, eal wit 1 my improved system in its three distinct is tufe. separatel ,hvizz the bllllflel prop r; t e 01 supp y; an t e err supp y.-

Burne-r proper: in the center of the fire box of the range indicated by dotted lines at 1 is located a metal plate 2. 3 is the burner pipe provided with a round orifice 4 arranged to threw the flame against the plate 2. At the outer end of the pipe 3 is a nipple 5 preferably of brass and provided with a main orifice 6 opening into the pi 3 at the. inner end, and provided with an oil inlet 8 entering the oriiice'o from the bottom, and an air inlet 9 entering said orifice 5 from above and rearwardly of said orifice or inlet 8. The

nipple 5 is constructed in the usual manner by boring the main orifice 6 through the body of the nipple, and likewise having the branch orifices 73' and :s transversely of the nip ale and intersecting the main oriiice 6,

on with the outer eudof the main orifice closed by a screw plug 7- in the usual manner.

(h'l supply Iii-designates an oil tank, preferably buried or otherwise disposed in a convenient place in the usual manner and at a. safe distance from the burner and provided with an oil supply pipe 11.

12 is an automatic water pressure air pump connected to a source of water supply l3. Leading from said air pump 12 is a pipe H which is connected into the top of the said oil tnnk 10. Located in the said pipe I! is an air pressure regulator 15, the pipc 14 luring also provided with u gage l6 and a check Volvo 15.

17 is :in oil supply pipe leading from near the bottom of the tank 10 and living con- Illl'll'll to the inlet orilico N of the nipple 5 and also provided with a strainer 18, the lulu-r provided with o. for-ominous diaphragm ill and it draw oll' ill having a. closure It)". Said pipe 17 is also provided with a v-ilyo. 20, located at tho hulk and a valve 2] :il. t'ze burner to control the How.

2! is a tank indicator of suitable construclion located on lhitank I for the purpose of gaging the amount of oil tin-rein, and 23 is o'pop valve adapted to relieve. all surplus pressure in said tool; when the tank is living lilh-d through pipe ll while the burner is in operation.

The regulator 133 permits of u uniform pressurion th oil tank, and the chockiwilve 15" kecpsihc air l'rom rushiugjmcleiul-o the Q mm '. pipe 14 and pump 12 when the pump ceases to operate, which would cause the pressure to leave the oil and the fire would go .out.

Air supple 24 is a suitable electric Inotor provi c with a small pinion 25, said motor being supplied with electric power controlled by a switch 26. f 27 is an air pump preferably of the positive (pressure rotary construction and rovide with a pinion or gear 28 internics iing with the pinion whereby the pump 27 is operated from the motor 24.

29 is a pipe leading from the air pump 27 into the range indicated at 1 ant carried around therein and thence to the inlet 9.

- 30 is a pressure gage connected into said pipe- 29 to indicate the air pressure therein.

Located in the pipe 17 is a valve 31, and heldupward therefrom by a. small frame 33 is a small solenoid 32 connected in series by wires 37 to the switch 26 and to the motor 24.

34 is the stem of the valve 31, at the top of which is a cross piece 35, and connected between the piece 35 and the valve 31 is a spring 36, operating to hold the valve no'rmaliy closed when the magnet 32 is deenergizet -In using the ap aratus the tank 10 is filled with oil and tlic valve 21 is opened so as to permit the desired maximum amount -of oil to ilow to the burner proper. The air pump 12 is then supplied with a suitable amount of water pressure to operate it which causes the ressure on the oil in the tank 10 to force oi to the burner 3. Power is supplied to the motor 24 which causes the pump 27 to operate which forces air through the pipe 29 to the inlet 9 frouiwheiice it passes out through thc'round orilice 4 and atoniizing the oil which enters through the inlet 8, which atomized oil is ignited at the round orifice .4 and the llaine strikes the late 2 heating it red hot, so that if the tire is accidentally blown out or otherwise extinguished, it will immediately be lighted again from said plate.

The positive pressure rotary air pump described is a distinctive feature 0 my improved oil burning system, as here set forth, as I have found from experience in the actual operation of oil burners, for the pursos set forth, that it is the most economical and practical air pump tt use for propor] supplying air for utomizing the o:..

'i 'he positive pressure rotary air pump em )loyed in the apparatus should receive 'ant deliver forty cubic inches of air at each 3 revolution, without. pulsation and at a pressure from ten to twelve pounds per square inch; the prcssum being regulated by the size of the round orifice 4 at the end'or tip of the burner. The smaller the orifice the greater the pressure, and correspondingly the larger the orifice the lower the ressure. 1 have found from experience that om one to two pounds ressure at the burner tip or orifice 4 gives t e best results. I have also found that it requires forty cubic feet of air at two pounds pressure, which will be indicated. b the gage 30, to properly atomize one gal on-of crude oil, and to obtain the proper amount of air to atomize suflicient oil to give the desired heat, I can re ulate the speed of the rotary air pump by 0 auging the size of the pinion 25 on the electric motor, the gear 28 remaining the same size. If I desire a small amount of air 1 put on a small pinion 25. If 1 require a greater amount of air I substitute a larger pinion. .[f 'the airpump be constructed to deliver forty cubic inches of air at a revolution and the amount of air it takes to atomize a given quantity of oil is known, it is an easy matter to calculate the required speed of the rotary air pump. The motor employed is preferably of the constant speedconstruction. The air is delivered from the rotary pump to the orifice 4 at the burner tip without any interference in the way of a regulating valve on the riir pipe 29. The rotary air pump is geared when it is installed to give a maximum amount of air to atomize a maximum amount of oil which is admitted through the valve 20 on pipe 17. i

From the fact that the air pressure is at no time over two pounds to the square inch, it is not suilicient to blow out the fire it the attendant reduces the pressure of oil, (and consequently reduces the fire or heat) from the maximum to the minimum amount by means of the regulating valve 21. By this means the regulating valve 21 is the only valve the attendant has to operate; the other valves beingall set at the time the oil burner is installed and seldom need adjusting.

When the electric current is operating the motor 24 it passes throu h the wires 37 to the solenoid magnet and constantly energizes the same;

In workin the apparatus the operator 0 ens the va ve 31 by pulling upward upon ta cross iece 35 until the cross piece is brou ht within the influence of the solenoid, whic is strong enough to hold the valve open againstthe action of the sprin,, 36. When the current is shut off from the motor by the action of the switch 26 the solenoid is deenergized, releasing the valve 34 which is immediately closed automatically by the action of the spring 36, thus shutting oh the oil sup ly as soon as the air pressure is shut otl', an thus preventing the over-flow of the oil, as will be obvious.

Thestnincr 18 l9 prevents any extra the b ner 13" avapas riall altering the same,

not interfere with the ordinary gm terferc with the employment of as an ordinary coal or wood heater,

any P ab ed or rendered moperat vc,

cided advantage in herein described.

nace may be removed operation without affect ng itshur any way, as I do not depend on the burner consequently when cook or ant desires to remove the lids to 20.

or smother for the want of dra t I have now enters-(lin a detailed Bmdesire cific e re sorted to without departing fr mt e p t preferred 'seri-tion of the present and 1 ..ent of my invention. 1 do not however to co myself to such 5 .detail as many small'changes may of my invention.

Having thus described my inventi n, wh .I claim as new and u ful and-desire t 'secore by Letters Patentjs= p 1. In an oil burning apparatus, a fire chamber, a burner associated with said fire a connected to y P P leading chamber, a fuel su ply pi said burner, an supp and all the portions of t e device being arranged within the fire 0t are below the top of the range or stove g Y 'ddles, and being relatively small in area do notin: thefire pot if from through said fire chamber and connected at one end to said burner, means connected to the other end of said latter pipe for supplying air under pressure thereto, an electric motor, connecting means between said met-or and the air supplying means, a valve in said fuel supply pipe and provided with aprojecting "stem, an electro magnet adapted w en enered to influence said stem and maintain said valve open, a spring operating to close valve when the electro magnet is decnergized, and electric conductors between said magnet and motor.

2. In an oil burning ap aratus', a fire chamber, a burner associates with said fire chamber, a fuel supply pi e connected to said burner, an air supp y pipe leading through said fire chamber and connected at one end to said burner, a positive pressure rotary air pump connected to the other end of said air pipe, an electric motor, connecting means between said motor and the air pump, ;,a valve in the fuel supply pipe and provided -with a pro'ecting stem, an electro magnet adapted w en energized to influence said stem and maintain said valve open, a s ring operating to close said valve when the e ectro. magnet is denergized, and electric conductors between said magnet and motor.

.in presence of two witnesses.

' IRA EDWARD SMITH.

Witnesses:

Psnor S. Wans'raa, Joanna B. WEBSTER.

In testimony whereof I alfix my signature 

